Patent · US Expired

Router height adjustment apparatus

US7490642B1 · kind B1 · utility

9Cited by
140References
34Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 2, 2005
Grant dateFeb 17, 2009
Priority date
Expiry dateFeb 17, 2026

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T409/306608
  • WIPO fieldMachine tools
  • WIPO sectorMechanical engineering

Abstract

A router depth adjustment mechanism for minimizing rapid course depth adjustment for standard and plunge routers. Routers with rapid or course adjustment mechanisms may permit a router motor housing to drop suddenly, if the user is inattentive. Sudden adjustments may result in damage to the router and potentially contact the user. The mechanism of the present invention includes a threaded shaft and a biased thread engaging member which may be disengaged for rapid adjustment. A restraining device and/or a break may be included to minimize the rate of change.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.